Phonic Helix 18 FireWire MKI - Vista Compatibility Mode?

Hello all.
I am interested in purchase one of these Phonic Helix 18 FireWire Mixers, the MKI version, not the MKII.

I believe that Windows Vista is not supported by the MKI line. But there are drivers available for download for XP.

Since I run Windows Vista, I was thinking I might be able to use the Vista Compatibility Mode tool and use the Windows XP mode.

However, I do not know if this would affect the FireWire (I apologize for my lack of knowledge of FireWire...I know about USBs but am semi-new to FireWire.) I have searched the web (Yes, including this forum.) for more information about my situation, but no luck.

The only reason why I would rather purchase the MKI version is because I found a pretty good deal on it.

I have to agree with Codemonkey on this one. Drivers are OS specific period unless otherwise stated. I would stay away from anything that doesn't have drivers for you OS (unless of course you are willing to purchase said supported OS).